Concept explainers
(a)
Interpretation:
The chemical equation for the displacement of hydrogen gas from HCl(aq) by Al(s) should be determined.
Concept introduction:
A chemical equation is the representation of a
All molecules must be written with their physical state as sub script such as (s) for solid, (l) for liquid, (g) for gas and (aq) for aqueous. A balance chemical equation is the chemical equation in which all the atoms at both sides of the equation are same.
(b)
Interpretation:
The chemical equation for the reforming of propane gas with steam should be determined.
Concept introduction:
A chemical equation is the representation of a chemical reaction with the complete information of reactant and product molecules. Here both types of molecules must be written as their chemical symbols separated by the single headed arrow. If the reaction is at the equilibrium position, it must be an equilibrium sign (
All molecules must be written with their physical state as sub script such as (s) for solid, (l) for liquid, (g) for gas and (aq) for aqueous. A balance chemical equation is the chemical equation in which all the atoms at both sides of the equation are same.
(c)
Interpretation:
The chemical equation for the reduction of MnO2 to H2 and Mn should be determined.
Concept introduction:
A chemical equation is the representation of a chemical reaction with the complete information of reactant and product molecules. Here both types of molecules must be written as their chemical symbols separated by the single headed arrow. If the reaction is at the equilibrium position, it must be an equilibrium sign (
All molecules must be written with their physical state as sub script such as (s) for solid, (l) for liquid, (g) for gas and (aq) for aqueous. A balance chemical equation is the chemical equation in which all the atoms at both sides of the equation are same.
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General Chemistry: Principles and Modern Applications (11th Edition)
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- For the reaction: Na2CO3(s) + CO2(g) + H2O (g) ↔ 2NaHCO3(s). The formula for computing Kc is?arrow_forward1. Which statement regarding sulphuric acid is incorrect? a. Concentrated sulfuric acid is about 78% H2SO4 by mass and 10 molar b. It is a strong acid with respect to its first step ionisation c. Its second step ionization is not complete in concentrated solutions d. It is often used as a dehydrating agent because of its strong affinity for H2O 2. Which of the following statements concerning silicon and its bonding is false? a. Silicon dioxide consists of linear molecules b. Silicon has vacant 3d orbitals in its valence shell that can accept electrons from donor atoms c. Silicon does not form very stable Si–Si bonds unless the silicon atoms are bonded to very electronegative elements d. Silicon forms its strongest single bond with oxygenarrow_forwardWhat is the product? CN Br 1. NaOEt 2. DIBAL 3. H3O+arrow_forward
- What is the likelihood that hydrogen (H2) will become a widely used fuel and that the hydrogen economy will become a reality? In particular, what are the advantages and disadvantages of H2 as a fuel? What would be necessary for a significant conversion to a hydrogen economy?arrow_forwardThe halogens form three stable, weak acids, HOX. (a) Which is the strongest of these acids? (b) Explain why the acid strength changes as the halogen atom is changed.arrow_forwardEstimate ΔrH° for forming 2 mol ammonia from molecular nitrogen and molecular hydrogen. Is this reaction exothermic or endothermic?arrow_forward
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